Siemens SIMATIC HMI KTP900 Basic - Information on Insulation Tests, Protection Class and Degree of Protection

Technical specifications
8.5 Information on insulation tests, protection class and degree of protection
Basic Panels 2nd Generation
102 Operating Instructions, 10/2016, A5E33293231-AB
8.5
Information on insulation tests, protection class and degree of
protection
Insulation test
The insulation strength is demonstrated in the type test with the following test voltages in
accordance with IEC 61131-2:
Circuits with rated voltage of U
i
Test voltage
Insulation tested with (type test) 707 V DC to other circuits/to ground
For Ethernet socket: 1500 V AC
Degree of pollution and overvoltage category
The device meets the following requirements according to IEC 61131-2:2007:
Degree of pollution
2
Overvoltage category II
Protection class
Protection class III according to IEC 61131-2
Protection against foreign objects and water
The device meets the requirements according to EN 60529.
Device side
Degree of protection
Front When mounted:
• IP65
• Type 4X/Type 12 (indoor use only)
Rear panel IP20
Protection against contact with standard test probes. There is no protection
against the ingress of water.
The front protection rating can only be guaranteed if the mounting seal lies flush against the
mounting cutout. Read the corresponding information in section "Making the mounting cutout
(Page 24)".